Necticut



(N0 Model.)

W D- DORBMUS. PADLOGK.

Patented Apr. 28, 1891.

UNITE STATES ArnN'r innen@ TO THE CORBIN CABINET LOCK COMPANY, OF NEWTNECTICUT.

BRITAIN, co'N- PADLOCK.

SPECIFICATION forming part of Letters Patent No. 451,110, dated Apriles, 1891. l

Application filed June 29, 1889- Serial No. 316,020. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, VILLARD D. DOREMUS, of /Vasbington, in the Districtof Columbia, have invented certain new and useful Improvements inPadlocks; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to an improvementin padlocks, the object being toprovide simple and convenient means for changing the combination,wherebyanew combination is formed by the insertion of the key, as willbe hereinafter more fully set forth, and pointed out in the claims.

In the accompanying` drawings, Figure lis a view in perspective of thelock with the hasp open. Fig. 2 is a view in elevation, showing the haspclosed and the front plate removed. Fig. 3 is a similar View showing thehasp open. Fig. 4 is a view of the sliding plate, which carries thecircular sections of the tumblers. Fig. 5 is a view of one of thepivoted sections of a tumbler. Fig. 6 is a view of the sliding plateandpivotal section of the tumbler adjacent. to the sliding plate. Fig. 7is a View of the lock, showing the pivoted and circular sections of thetumblers separated; and Fig. S is a view in crosssection.

A represents a casing of the usual construction, and B the hasp pivotedto the case and provided on one face with a recess, within which one endof spring Z9, which opens the hasp, rests. The hasp is provided on itshub with a shoulder c and in advance of the shoulder with the finger c',adapted to turn the locking-bolt C up against shoulder c and withdrawthe tongue@ of the locking-bolt out of the gatings or slots in thecircular sections of the tumblers.

The locking-bolt C is pivoted on stud f, secured to the casing, with itslocking end in close contact with the hub of the hasp and provided atits opposite end with a pin, against which spring g, secured to one ofpivoted sections of the tumbler, bears for moving the locking end of thebolt away from shoulder c and moving the tongue into the slots incircular sections of the tumblers.

The plate D which carries the circular sections of the tumbler, restssolidly against the inner face of the casing, and is provided on one endwith a slot for the short stud 7L and on its opposite curved end with aslot t' for the long stud y', which latter is rigidly secured to thecasing and carries the pivoted sections of the tumbler. The curved endoi the plate is extended upwardly through the hasp-opening andterminates in a thumb-lever 7i', by which the plate can be slid inwardlyor toward the tongue end of the locking-bolt.

The plate D carries at its inner end the cylindrical stud L, on whichthe movable sections ot' the tumbler are mounted, and at a point nearerits center with the short stud L,which latter is about equal in lengthto the thickness of the pivot-ed section l of the tumblers and isadapted to engage the outer free end of this tumbler when the plate isslid inwardly or to the right and holdthe same until released by movingthe tumbler upwardlyy until the stud registers with the slot therein.

All of the pivoted sections of the tumblers are mounted on the stud .7'.Section l, as before stated, is provided at its free end with a singleslot for entrance of the short stud L on plate D, While sections 2, 3,and tare all provided with teeth adapted to engage teeth on the circularsections 6, 7, and 8. Pivoted sections l and 2 are each provided with ashort spring, the free ends of which bear against `the shoulder m of theplate D and tend to turn the free toothed ends of the sectionsdownwardly toward the bot-tom ol the easing and move the sliding plate Dto the left, while pivoted section 3 has alonger spring g, which bearsagainst the pin onthe dog C'and tends to move the locking end ofthe dogaway from the shoulder c on the hub of the hasp and move the pivotedsection 3 toward this bottom of the lock, and section 4 a spring whichbears against the casing and tends to force section 4 toward the bottomof the lock.

Thus it will be seen that when the sliding plate carrying thecylindrical sections of the tumbler is moved to the right, so as todisengage the teeth of the cylindrical and pivoted sections, the springsinstantly throw all of the pivoted sections downwardly until they comein contact with the key-guard formed in the bottom of the casing.

Section 5 of the cylindrical sections of the tumblers is simply a washerof the thickness of its corresponding pivoted section 1, while the othercylindrical sections 6, 7, and S are provided with teeth extending partway round and with gatings or slots for the tongue on the dog.

The hasp is provided at its free end with a recess, which latter whenclosed lits over the thumb-piece and conceals the same, and consequentlyprevents the plate D from being shifted while the hasp is closed. Again,when the hasp is closed the tongue on the lockingbolt is in contact withthe peripheries of the circular sections of the tumblers, and alsoassists in holding the plate against endwise movement.

The casing is provided with a key-slot, the inside of the casing beingthickened at this point to form a guard P. The key-slot is directlyunder the tumblers and near the free ends thereof, and hence theinsertion of the proper key moves the pivoted sections ofthe tumblersand the pivoted sections in turn operate their corresponding circularsections until the slots or gatings in the circular sections C, 7, and 8align with the tongue on the locking-bolt. After the sections (i, 7, andS have been turned so that their slots are in line the spring g, beforereferred to, turns the locking-bolt and releases the hasp, which iiiesopen. To change the combination the thumb-lever is moved to the rightuntil the short stud L on the plate D leaves the slot in section l, andpermits said section to fall onto the key guard. The stud now restsagainst the edge of section 1 and absolutely prevents the plate movingback to its normal position. NVhen the hasp is open, the tongue on thelocking-bolt extends only a short way of the slots in the sections 6, 7,and 8, the remaining or unoccupied portions of the slots permitting theplate D to be moved to the right and the sections 6, 7, and 8 to bemoved Well in on the tongue. The movement of the plate carries with itall the circular sections, and hence disengages the teeth and permitsall the pivoted sections to fall onto the key-guard. A new key is nowintroduced, and the wards thereof engaging the pivoted sections of thetumblers moves them all upwardly in their proper relative positionsuntil the slot in section l reaches the short stud L on the plate D.This prevents farther inward movement of the key, releases the plate D,and allows it to slide to the left and carry with it the circularsections of the tumblers until the teeth of the latter engage leaves theslot and allows the springs on* the pivoted sections to force thepivoted sections down ont-o the guard and turn the circular sections.The locking-bolt is cutaway on one face, leaving an oblique shoulder n,against which the linger c of the hasp contacts when the latter isclosed, and it is this enga-gement of the finger and shoulder n thatturns the bolt and withdraws the tongue from the slots and movesthelocking end into contact with shoulder c.

It is evident that numerous slight changes in the construction andrelative arrangement of parts might be resorted to without departingfrom the spiritv of my invention, and hence I would have it understoodthat I do not contine myself to the exact construction shown anddescribed, but consider myself at liberty to make such changes asfairly` fall within the spirit and scope of my invention.

Ilaving fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. In a combination-lock adapted to have its combinations changed by theuse of a key, the combination of the tumblers in two separable sections,a movable plate carrying the circular sections, and devices for holdingthe sections of the tumblers together, substantially as set forth.

2. The combination of a movable plate and the circular parts of the tumblers carried thereby, the other parts of the tumblers being pivotedtothe case, of a tongue pivoted to the casing and adapted to enter thegatings in the circular sections when the latter have been turned toregister therewith by the movement of t-he pivoted sections,substantially as set forth. t

3. The combination, with a movable plate and circular sections of thetumblers carried thereby, of sections of the tumblers pivoted to thecasing, a tongue pivoted to the casing and adapted to enter slots in thecircular sections of the tumblers, and devices for holding the'sectionsof the tumblers in contact, substantially vas set forth.

4. In a combination-lock adapted to have its combinations changed by theuse of a key, the combination, with a movable plate having a stud and aseries of circular tumbler-sections mounted on said stud, of the pivotedsections mounted on a stud attached to the casing, means whereby thecircular sections mounted on the plate can be moved away from thepivoted sections, devices for holding the sections of the tumblerstogether, and springs for forcing the pivoted sections downwardly towardthe key-slot, substantially as set forth. w

5. The combination, with a movable plate and the circular sections ofthe tumblers mounted thereon, of the pivoted sections mounted on a studsecured to theV casing, springs for moving the pivoted sections towardthe key-slot, and a tongue pivoted to the casing and adapted to enterslots in the IOC IIO

circular sections of the tumblers, substantially as set forth.

G. In a combination-lock adapted to'have its combination changed by theuse of a key, the combination, with the movable plate carrying a seriesof circular tumbler-sections, of the pivoted tumbler-sections mounted ona stud secured to the casing, and a stop for limiting the downwardmovement of the tumblersections, substantially as set forth. y

7. The combination, with a hasp and a locking-bolt, of a movable platecarrying a series of circular tumbler-sections, and a series oftumbler-sections pivoted to the casing, substantially as set forth.

8. The combination, with a hasp having a shoulder and a locking-bolthaving an end adapted to engage said shoulder, of tumblers made insections, one series of sections adapted to engage the bolt for holdingthe latter in con tact with the shoulder on the hub, substantially asset forth.

9. The combination, with a sliding plate having a short stud andcarrying circular sections of tumblers, of pivoted tumbler-sectons, oneof which is provided with a slot adapted to receive the stud on thesliding plate, substantially as set forth.

lO.` The combination, with a casing, sliding plate having a thumbprojecting through the casing, and tumblers, each composed of a pivotedand circular section, one series of said sections being mounted on theplate, of a hasp having a recessed end adapted toreceive thethumb-lever, substantially as set forth.

Il. In a-changeable-combination key-lock, the combination of a key foractuating the tumblers in changing the combination and in unlocking thelock,and the tumblers in parts geared together at all times except whenthe combination is to be changed, substantially as set forth.

12. In a changeable-combination key-lock, the combination, with thetumblers in parts normally geared together and means for separating. thetumbler parts to allow the combination to be changed, of a device forretaining the tumbler parts in a separated relation and a key foractuating said device to allow the tumbler parts to be restored to theirnormal operative condition and for changing the combination and foractuating the lock when the combination has been changed, substan.-

tially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing Witnesses.

VILLARD -D. DOREMUS.

Vitnesses:

GEO. W. CoRBiN, FRANK W. MIX.

